Results 81 to 90 of about 644,124 (298)

The promotion of renewable energy sources: European experiences and steps forward [PDF]

open access: yes
This study investigates the instruments used by governments in order to support renewable energy sources in the European Union. The findings of this study reveal that policy goals could be achieved by using a large variety of instruments and renewable ...
Andreea ZAMFIR
core  

Efficient Membranes Made of a Nanohybrid of Fluorine‐Doped Carbon Dots Coupled With Metal Organic Framework for High‐Performance Vanadium Redox Flow Battery

open access: yesAdvanced Functional Materials, EarlyView.
A sulfonated poly(ether ether ketone)‐based hybrid membrane is fabricated with fluorine‐doped carbon dot (FCD) and functionalized metal organic framework (MIL−101−NH2). The novel design reduces unwanted ion crossover while maintaining a sufficient proton transport pathway.
Tan Trung Kien Huynh   +8 more
wiley   +1 more source

Interfacial electrostatic repulsion inhibits iodide ion migration for enhancing reverse-bias stability of perovskite solar cells

open access: yesNature Communications
The perovskite solar cells (PSCs) achieve notable advances in stability under humidity, light, and heat stress. However, PSCs are still susceptible to reverse-bias degradation, mainly due to the inevitable iodide ions migration.
Zhineng Lan   +12 more
doaj   +1 more source

Consumers’ knowledge of bio-energetics [PDF]

open access: yes
Our aim was to establish the specific objectives and toolkit of eco-energetic marketing targeting the North Hungarian region, through a primary survey of 600 persons.
Tamus, Antalne
core   +1 more source

Connection of renewable energy sources to the power grid [PDF]

open access: yes, 2018
Diplomová práce se zabývá obnovitelnými zdroji energie a druhy, které se nejvíce využívají. Teoretická část je věnována obecným informacím o obnovitelných zdrojích energie, typech elektráren a v další části se zaměřuje na fotovoltaické elektrárny ...
Mohamed Saleh
core  

Distributed smart charging of electric vehicles for balancing wind energy [PDF]

open access: yes, 2012
To meet worldwide goals of reducing CO2 footprint, electricity production increasingly is stemming from so-called renewable sources. To cater for their volatile behavior, so-called demand response algorithms are required.
De Turck, Filip   +2 more
core   +2 more sources

Silicified Wood‐Inspired, High‐Strength Fire‐Resistant Chitin‐Based Aerogels for Sustainable High‐Temperature Thermal Insulation

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by natural silicified wood, a biomimetic mineralized chitin‐derived aerogel is constructed. It can withstand 81 000 times its own weight, and its backside temperature is 130.4°C after exposure to ∼1300°C butane flame for 600 s, exhibiting high‐strength, fire‐resistance, and super thermal‐insulation properties.
Kai Xu   +11 more
wiley   +1 more source

Carbon Nanotubes Modified by Venturello Complex as Highly Efficient Catalysts for Alkene and Thioethers Oxidation With Hydrogen Peroxide

open access: yesFrontiers in Chemistry, 2019
In this work, we elaborated heterogeneous catalysts on the basis of the Venturello complex [PO4{WO(O2)2}4]3− (PW4) and nitrogen-free or nitrogen-doped carbon nanotubes (CNTs or N-CNTs) for epoxidation of alkenes and sulfoxidation of thioethers with ...
Vasiliy Yu Evtushok   +12 more
doaj   +1 more source

THE IMPORTANCE OF THE INFORMATICS SYSTEM FOR THE DURABLE DEVELOPMENT [PDF]

open access: yes
One of the fields whose importance has been surging lately is the durable development, which is impossible to achieve unless humankind gives up gradually to the fossil energy sources and switches to the exploitation of the renewable energy sources.
ANDRONIE, Maria, ANDRONIE, Mihai
core  

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